CN102233193A - Evaporation concentration device - Google Patents
Evaporation concentration device Download PDFInfo
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- CN102233193A CN102233193A CN2010101690133A CN201010169013A CN102233193A CN 102233193 A CN102233193 A CN 102233193A CN 2010101690133 A CN2010101690133 A CN 2010101690133A CN 201010169013 A CN201010169013 A CN 201010169013A CN 102233193 A CN102233193 A CN 102233193A
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Abstract
The invention provides an evaporation concentration device. In the invention, a plurality of heat transfer tubes with external diameter of 15mm-26mm are divided into a plurality of heat transfer tube groups in a closed evaporating pot, and the number of the tubes in the heat transfer tube groups sequentially is decreased or increased along the upward direction; heating steam sequentially flows from the heat transfer tube group with the maximum tube number to those with less tube numbers; and a supply dispersion quantity of solution in the heat transfer tube group per horizontal projection area is 10m<3>/h/m<2>-60m<3>/h/m<2>.
Description
Technical field
The present invention relates to make the evaporation concentration device of water evaporates in the solution to concentrate.More specifically, the present invention relates to all or part of compression of the steam that to produce from the external heated steam or by solution with evaporation concentration device as the thermal source that heats this solution.
Background technology
As existing evaporation concentration device, for example have liquid is flowed down with the internal face of film shape along heat-transfer pipe under the effect of gravity, make the film downward flow type evaporation concentration device of this liquid evaporation to concentrate.This film downward flow type evaporation concentration device is recorded in utility model bulletin communique, for example in the real public clear 49-42658 communique of Japan.
As other existing evaporation concentration device, liquid is flow in the evaporimeter, thereby and hot water is circulated make the liquid heating evaporation to soak the tubular type evaporation concentration device in the heat-transfer pipe of evaporimeter with what concentrate.This soaks the tubular type evaporation concentration device and is documented in patent announcement communique, for example Japanese Patent Publication 33-6314 communique.
In the former film downward flow type evaporation concentration device, the treatment fluid of supplying with to each heat-transfer pipe does not mix with the treatment fluid of other heat-transfer pipe, be difficult in addition to each heat-transfer pipe uniformly dispersing, therefore exist film to disconnect in this device and produce dry heat-transfer area or concentrated excessively, incrustation scale adheres to and can't obtain and the problem that designs the consistent thermal efficiency.
Soaking in the tubular type evaporation concentration device of the latter, the nucleateboiling that has by tube surface conducts heat.Therefore, in this device, there is the problem that heat transfer efficiency is lower, incrustation scale causes thermal conductivity factor to reduce attached to tube surface.
Summary of the invention
Therefore, main purpose of the present invention is, the less evaporation concentration device that adheres to of heat transfer efficiency higher and incrustation scale and dirt is provided.
In order to reach above-mentioned purpose, evaporation concentration device of the present invention is heated solution under decompression state, makes this solution evaporation to concentrate, and in this evaporation concentration device, possesses:
Horizontal arrangement has the evaporator of the closed of a plurality of heat-transfer pipes; With
With store the described solution of described evaporator bottom supply with from the top of this evaporator spread to described heat-transfer pipe outer surface so that the recycle unit of described solution circulation.
Heating steam is fed in the described heat-transfer pipe, and the external diameter of described heat-transfer pipe is 15mm～26mm.
Described a plurality of heat-transfer pipe is divided into a plurality of heat transfer tube group, and on above-below direction, the mode that reduces successively or increase successively with the heat transfer tube group pipe number more disposes.Promptly, a plurality of heat-transfer pipes are divided into a plurality of heat transfer tube group, and on above-below direction, the mode that reduces successively with the heat transfer tube group pipe number of past more top disposes, perhaps a plurality of heat-transfer pipes are divided into a plurality of heat transfer tube group, and on above-below direction, the mode that increases successively with the heat transfer tube group pipe number of past more top disposes.
The heating steam that supplies in the heat-transfer pipe is constituted as from the maximum heat transfer tube group of pipe number mobile to the few heat transfer tube group of pipe number successively.Promptly, be divided into a plurality of heat transfer tube group and on above-below direction at a plurality of heat-transfer pipes, under the situation about disposing in the mode that reduces successively toward the heat transfer tube group pipe number of top more, heating steam is constituted as from the maximum heat transfer tube group of the pipe number of below and flows to the few heat transfer tube group of pipe number successively.In addition, be divided into a plurality of heat transfer tube group and on above-below direction at a plurality of heat-transfer pipes, under the situation about disposing in the mode that increases successively toward the heat transfer tube group pipe number of top more, heating steam is constituted as from the maximum heat transfer tube group of the pipe number of top and flows to the few heat transfer tube group of pipe number successively.
Is every horizontal projected area 10m of heat transfer tube group by described recycle unit for the supply dispersion volume of the described solution of described heat transfer tube group
3/ h/m
2～60m
3/ h/m
2
Above evaporation concentration device has, the different a plurality of heat transfer tube group of pipe number dispose on above-below direction, and the mobile structure of heat transfer tube group that heating steam is tailed off to the pipe number successively from the maximum heat transfer tube group of pipe number, therefore the flow velocity of heating steam can be kept at high speed, and roughly uniform thin film evaporation can be in whole heat transfer tube group, carried out.
In addition, in above-mentioned evaporation concentration device, the external diameter of heat-transfer pipe is 15mm～26mm, is every horizontal projected area 10m of heat transfer tube group for the supply dispersion volume of the solution of heat transfer tube group
3/ h/m
2～60m
3/ h/m
2Therefore the film of the solution that not only scattered of heat-transfer pipe covers fully, and in the bottom of heat-transfer pipe, become membranaceous fall continuous with respect to the length direction of heat-transfer pipe, thereby can bring mixing effect with the heat-transfer pipe sharp impacts of below, therefore can carry out uniform thin film evaporation, and can suppress incrustation scale and adhering to of dirt and improve heat transfer efficiency.
In preferred first mode of the present invention, possess heating steam is sent into firing equipment in the described heat-transfer pipe.
Though also can supply in the heat-transfer pipe,, can heating steam be sent in the heat-transfer pipe from firing equipment by above-mentioned first mode from the outside with heating steam.
In preferred second mode of the present invention, possess first header box and second header box that are connected with the two ends of described a plurality of described heat-transfer pipes respectively, described each header box have the dividing plate that the space that will be connected with the heat-transfer pipe of the heat transfer tube group of top and the space that is connected with the heat-transfer pipe of the heat transfer tube group of below separate and the condensate liquid that makes the heat transfer in-tube condensation of the heat transfer tube group above described run down into by described dividing plate separate below the space in the sealed tube of bending.
According to above-mentioned second mode, condensate liquid at the heat transfer in-tube condensation of each heat transfer tube group is separated by the space of each heat transfer tube group of two header boxs, and by under the sealed tube spatial flow downwards, therefore can not enter into the heat-transfer pipe of next heat transfer tube group at the condensate liquid of the heat transfer in-tube condensation of each heat transfer tube group, can suppress owing to condensate liquid hinders heat transfer thus.
In another preferred Third Way of the present invention, four angular separation that are arranged as of described a plurality of heat-transfer pipes are arranged (four jiaos of ピ Star チ assortment) or three angular separation arrangements (triangle ピ Star チ assortment), being spaced apart more than the 5mm between the heat-transfer pipe of adjacency.
Therefore according to above-mentioned Third Way, being spaced apart more than the 5mm between the heat-transfer pipe of adjacency can make the outer surface that is dispersed in heat-transfer pipe and the steam that evaporates successfully separated from solution.
In the cubic formula of present invention further optimization, described a plurality of heat-transfer pipes are in 4/1000 in the gradient of length direction with respect to the horizontal plane.
According to above-mentioned cubic formula, heat-transfer pipe flatly keeps with interior gradient with 4/1000, and therefore the solution that can suppress to scatter becomes inhomogeneous on the length direction of heat-transfer pipe.
In the 5th mode of present invention further optimization, described firing equipment is for the steam compressed intensification that will produce in described evaporator and be sent to heat pump or vapor steam blaster in the described heat-transfer pipe.
According to above-mentioned the 5th mode, the steam that produces at evaporator compresses efficiently to heat up and be sent in the heat-transfer pipe by heat pump or vapor steam blaster and uses as heating source, so energy conversion efficiency is higher, can realize energy-conservation.
In preferred the 6th mode of the present invention, described heating steam supplies in the described heat-transfer pipe from the outside of this evaporation concentration device.
Heating steam also can be bled steam.
According to above-mentioned the 6th mode, firing equipments such as heat pump can be set, and be used to from the external heated steam as thermal source.
Description of drawings
Fig. 1 is the summary construction diagram of the evaporation concentration device in the embodiments of the present invention;
Fig. 2 is the decomposition diagram of pith of the evaporation concentration device of Fig. 1;
Fig. 3 is the schematic diagram of the arrangement of expression heat-transfer pipe;
(a) of Fig. 4 is the cutaway view that flows of solution in the expression heat-transfer pipe;
(b) of Fig. 4 is the front view that flows of solution in the expression heat-transfer pipe;
Fig. 5 is the summary construction diagram of the evaporation concentration device in another embodiment of the present invention;
Fig. 6 is the decomposition diagram of pith of the evaporation concentration device of Fig. 5;
Fig. 7 is the summary construction diagram of the evaporation concentration device in the another embodiment of the invention;
Fig. 8 is the schematic diagram of another example of the arrangement of expression heat-transfer pipe.
The specific embodiment
Embodiment 1
Followingly evaporation concentration device in the embodiments of the present invention is elaborated with reference to accompanying drawing.Fig. 1 represents the summary construction diagram of the evaporation concentration device in the embodiments of the present invention, and Fig. 2 represents the decomposition diagram of its pith.
This evaporation concentration device 1 possesses the evaporator 2 of the closed of horizontal cast.The solution that should concentrate (stoste) is fed into the bottom of evaporator 2 by stoste feeding pipe 3 (Fig. 1).About this evaporator 2, be provided with a pair of header box 4 and header box 5.Many heat-transfer pipe 6 level frames are located between header box 4 and the header box 5.
The solution of evaporator 2 bottoms is fed into the dispensers such as nozzle 11 that are arranged on the top in the evaporator 2 by circulating pump 9 via circulation line 10, and from of the outer surface distribution of this dispenser 11 to each heat-transfer pipe 6, afterwards, run down into the bottom in the evaporator 2, so circulate.
That is, constitute the solution that will remain in the evaporator 2 and supply with the recycle unit that spreads to the outer surface of heat-transfer pipe 6 and make the solution circulation from the top of evaporator 2 by circulating pump 9, circulation line 10 and dispenser 11.The taking-up pipeline 12 that is used to take out the solution after concentrating midway being provided with of circulation line 10.
The top of evaporator 2 is connected with heat pump 16 as firing equipment by vapor outlet port pipeline 15.Heat pump 16 attracts the steam of flash tank 2, and the steam compression of its attraction is heated up, and supplies with to the header box 4 of entrance side by vapor line 31.The header box 5 of outlet side is connected with vavuum pump 14 by exhaust pipe 13.By this vavuum pump 14 with the decompression state that remains in the evaporator 2 below the atmospheric pressure.
As previously discussed, above-mentioned evaporation concentration device 1 by vavuum pump 14 will evaporator 2 in decompression, the outer surface that solution is spread to heat-transfer pipe 6 by dispenser 11 is so that the solution evaporation, and the steam that produces is heated up by heat pump 16 compressions.With the steam of this intensification header box 4 as described below supplying in above-mentioned each heat-transfer pipe 6, heat with solution, thereby make the solution evaporation the outer surface that is dispersed in each heat-transfer pipe 6 by entrance side.
So, the steam compressed intensification of above-mentioned evaporation concentration device 1 by utilizing heat pump 16 to produce by solution, as the thermal source that is used to make above-mentioned solution evaporation, thus evaporation concentration device 1 energy conversion efficiency higher, can realize energy-conservation.
In this embodiment, level frame is located at the two ends of each heat-transfer pipe 6 between two header boxs 4,5 and inserts in the logical installing hole that also is fixed on airtightly on the tube sheet 17,18 that is formed at each header box 4,5 of division.
In addition, only show the tube sheet 17 of header box 5 sides among Fig. 2.Evaporator 2 is that 4/1000 mode with interior levelness is provided with in the gradient of length direction with respect to the horizontal plane with heat-transfer pipe 6.
In this embodiment, each heat-transfer pipe 6 is divided into a plurality of heat transfer tube group, is first～the 3rd three heat transfer tube group 6a, 6b, 6c in this example, thereby is configured to three sections up and down.
And in this embodiment, each heat-transfer pipe 6 disposes in the mode that the radical of the heat transfer tube group heat-transfer pipe 6 of past more epimere reduces successively.
That is, the radical of the heat-transfer pipe 6 of the first heat transfer tube group 6a of hypomere is maximum.
The radical of the heat-transfer pipe 6 of the second heat transfer tube group 6b in stage casing is less than the first heat transfer tube group 6a of hypomere.
The radical of the heat-transfer pipe 6 of the 3rd heat transfer tube group 6c of epimere is less than the second heat transfer tube group 6b in stage casing.
The ratio of the radical of the heat-transfer pipe 6 of first～the 3rd heat transfer tube group 6a～6c is not particularly limited, and can be the degree of for example 3: 2: 1,6: 3: 1 or 4: 2: 1.
As shown in Figure 1, in two header boxs 4,5, the header box 4 of a side entrance side is divided the 4a of inlet and the chamber 4b that turns back that forms as the inlet of heating steam by dividing plate 4c.The header box 5 of the opposing party's outlet side is divided by dividing plate 5c and is formed turn back chamber 5a and the 5b of downstream chamber.
One end of each heat-transfer pipe 6 of the first heat transfer tube group 6a of hypomere is at the 4a of inlet of the header box 4 of entrance side opening, and its other end is at the chamber 5a opening of turning back of the header box 5 of outlet side.
The two ends of each heat-transfer pipe 6 of the second heat transfer tube group 6b in stage casing are respectively at the chamber 4b that turns back, the 5a opening of two header boxs 4,5.
One end of each heat-transfer pipe 6 of the 3rd heat transfer tube group 6c of epimere is at the chamber 4b opening of turning back of the header box 4 of entrance side, and its other end is at the 5b of downstream chamber of the header box 5 of outlet side opening.
Therefore, import to the heating steam among the 4a of inlet of header box 4 of entrance side, the heat-transfer pipe 6 of the first heat transfer tube group 6a that the radical of heat-transfer pipe 6 of flowing through is maximum is also turned back at the chamber 5a that turns back of the header box 5 of outlet side, the radical of heat-transfer pipe 6 of flowing through be less than the first heat transfer tube group 6a the second heat transfer tube group 6b heat-transfer pipe 6 and turn back at the chamber 4b that turns back of the header box 4 of entrance side, be directed into the 5b of downstream chamber thereby the radical of the heat-transfer pipe 6 of flowing through is less than the heat-transfer pipe 6 of the 3rd heat transfer tube group 6c of the second heat transfer tube group 6b.
Turning back of this heating steam becomes so-called three baffling structures.
Heating steam for example flows in a fully long heat-transfer pipe and produces under the situation of condensation, and the steam flow velocity is bigger at the inlet portion place of heat-transfer pipe.Yet, heating steam diminishes owing to above-mentioned condensation causes vapor volume to reduce the steam flow velocity gradually, and the ratio with respect to its condensate liquid and non-condensing gas increases, and the flow velocity of driving away the heating steam of condensate liquid and non-condensing gas is roughly zero in end, causes the heat transfer property variation.Therefore, produce violent evaporation with respect near the outer surface the inlet of heat-transfer pipe, evaporation reduces near above-mentioned terminal.
Relative therewith, in the present embodiment, first～the 3rd heat transfer tube group 6a～6c disposes up and down in the mode that the radical of the heat-transfer pipe 6 of the heat transfer tube group of past more epimere reduces successively, and make heating steam begin to flow through second heat transfer tube group 6b of epimere and the order of the 3rd heat transfer tube group 6c with the first maximum heat transfer tube group 6a of radical from the heat-transfer pipe 6 of hypomere, can keep the flow velocity of heating steam on each heat transfer tube group 6a～6c high speed ground thus, thereby can in whole heat transfer tube group 6a～6c, realize roughly uniform thin film evaporation.
As shown in Figure 1, the header box 4 of entrance side be provided with the condensate liquid that stockpiles among the chamber 4b that turning back is run down into when keeping pressure reduction to have pressure differential below the 4a of inlet in the crooked sealed tube (Le one プ シ one Le pipe) 19 of U word sigmoid.
The header box 5 of outlet side be provided with the condensate liquid that stockpiles in the 5b of downstream chamber is run down into when keeping pressure reduction to have pressure differential below the chamber 5a that turns back in the crooked sealed tube 20 of U word sigmoid.
Stockpile condensate liquid in the 4a of inlet of the header box 4 of entrance side is shifted into the header box 5 of outlet side by the heating steam of high flow rate the chamber 5a that turns back.
The bottom of the chamber 5a that turns back of the header box 5 of this outlet side is connected with the discharge line 7 that is used to discharge the condensate liquid that stockpiles, and discharges by condensate pump 8.
So, the condensed water of the heat-transfer pipe outlet of the first heat transfer tube group 6a stockpiles in the chamber 5a that turns back of the header box 5 of outlet side, the condensate liquid of the heat-transfer pipe of second heat transfer tube group 6b outlet stockpiles in the chamber 4b that turns back of the header box 4 of entrance side in addition, and the condensate liquid of the heat-transfer pipe of the 3rd heat transfer tube group 6c outlet stockpiles in the 5b of downstream chamber of the header box 5 of outlet side in addition.Further, the turn back condensate liquid of chamber 4b and the 5b of downstream chamber flows down downwards by crooked sealed tube 19,20.
By above structure, the condensate liquid of the heat-transfer pipe of the first heat transfer tube group 6a, second heat transfer tube group 6b outlet can not enter into the heat-transfer pipe 6 of the ensuing second heat transfer tube group 6b, the 3rd heat transfer tube group 6c, can prevent effectively that thus condensate liquid from hindering heat transfer.
In the present embodiment, as shown in Figure 3, being arranged as of each heat-transfer pipe 6 of each heat transfer tube group 6a～6c, four angular separation that are centered close to imaginary foursquare summit of circular heat-transfer pipe 6 are arranged.
The external diameter of heat-transfer pipe 6 is 15mm～26mm.
The wall thickness of heat-transfer pipe 6 is preferably about 0.5mm～1.0mm.
So, because the wall thickness of heat-transfer pipe 6 is thinner, even the very little solution film that also can make of the temperature difference of heating steam and heated solution evaporates.
Up and down or about interval D 1 between the heat-transfer pipe 6 of adjacency be more than the 5mm, the upper limit of this interval D 1 for example is about 12mm.The viscosity of the solution that interval D 1 consideration between the heat-transfer pipe 6 should concentrate and the generation easness of incrustation scale wait to be selected.
By so being arranged to the arrangement of four angular separation and making the interval D 1 between the heat-transfer pipe 6 is more than the 5mm, steam in the surface evaporation of heat-transfer pipe 6 is successfully separated from solution, can easily will remove from the outside of heat transfer tube group in addition attached to incrustation scale on the heat-transfer pipe 6 and dirt.
In the present embodiment, as mentioned above, the external diameter of heat-transfer pipe 6 is 15mm～26mm, and the supply dispersion volume of the solution that scatters from dispenser 11 is every floor projection unit are 10m of heat transfer tube group 6a～6c in addition
3/ h/m
2～60m
3/ h/m
2That is every 1m,
2Horizontal projected area, 1 hour distribution 10m
3～60m
3Solution.This supplies with dispersion volume at 10m
3/ h/m
2～60m
3/ h/m
2In, select according to the solution that concentrates, for example select according to the viscosity of solution and the generation easness of incrustation scale etc.
By being arranged to such supply dispersion volume, flowing of solution on heat-transfer pipe 6 outer surfaces, shown in the front view of the cutaway view of Fig. 4 (a) and Fig. 4 (b), heat-transfer pipe 6 is not only covered by the liquid film 21 of solution fully, and in the bottom of heat-transfer pipe 6, length direction with respect to heat-transfer pipe 6 becomes continuous membranaceous falling, thus can sharp impacts the below heat-transfer pipe 6 and bring mixing effect.So can improve mixing effect, for example local the mistake can not taken place thus concentrate and produce incrustation scale, thereby can heat equably at the solution of the outer surface of heat-transfer pipe 6.
Supply with dispersion volume if surpass 60m
3/ h/m
2, then the thickness of solution is blocked up, and the steam that not only can hinder evaporation separates from solution, and heat transfer tube group and liquid stream also can become one and reduce the collision mixing effect.On the contrary, supply with dispersion volume less than 10m
3/ h/m
2The time, can't on heat-transfer pipe 6, be formed uniformly the film of solution.
In the evaporation concentration device 1 of said structure, by reducing pressure in 14 pairs of evaporators 2 of vavuum pump, and supply in the evaporator 2 from the solution that stoste feeding pipe 3 should concentrate.Further, drive circulating pump 9, the solution in the evaporator 2 is spread to the outer surface of each heat-transfer pipe 6 in the evaporator 2.
The solution that is scattered runs down into the bottom in the evaporator 2, outer surface at each heat-transfer pipe 6 is heated and thin film evaporation on the other hand, after the steam that produces is attracted to heat pump 16 compressed intensifications from vapor outlet port pipeline 15, import in each heat-transfer pipe 6 in the evaporator 2, be utilized as the thermal source that is used to heat the solution of the outer surface that is dispersed in this each heat-transfer pipe 6.In addition, the condensate liquid of condensation stockpiles in the bottom of the header box 5 of outlet side in heat-transfer pipe 6, utilizes condensate pump 8 to take out as condensate liquid via discharge line 7.
As mentioned above, the evaporation concentration device 1 of present embodiment is, make heating steam with the first maximum heat transfer tube group 6a of radical by heat-transfer pipe 6, the second heat transfer tube group 6b that then is less than the first heat transfer tube group 6a by the radical of heat-transfer pipe 6, and then by the radical of the heat-transfer pipe 6 three baffling structures more mobile than the order of the second heat transfer tube group 6b the 3rd heat transfer tube group 6c still less.Owing to be this three baffling structures, heating steam passes through with high flow rate, and condensate film is thinner, and the influence of noncondensable gas is also less, thereby can keep high flow rate to realize roughly thin film evaporation uniformly in whole heat transfer tube group 6a～6c.
In addition, the condensate liquid of the heat-transfer pipe of the first heat transfer tube group 6a, second heat transfer tube group 6b outlet can not enter into the heat-transfer pipe 6 of the ensuing second heat transfer tube group 6b, the 3rd heat transfer tube group 6c, can reduce the influence that condensate liquid causes, so heat transfer property improves.
Further, making the external diameter of heat-transfer pipe 6 is 15mm～26mm, and to make the supply dispersion volume of the solution that scatters from dispenser 11 be every horizontal projected area 10m of heat transfer tube group 6a～6c
3/ h/m
2～60m
3/ h/m
2, therefore utilize the flowing of solution that flows down from the heat-transfer pipe 6 of top to stir evaporation uniformly, utilize self-cleaning effect incrustation scale, adhering to of dirt to tail off.
In the present embodiment, though used heat pump 16 for the steam that compresses flash tank 2, as correspond respectively to Fig. 5 of above-mentioned Fig. 1 and Fig. 2 and shown in Figure 6, also can use vapor steam blaster 24 to substitute heat pump 16.That is, also in the future the steam of flash tank 2 is attracted to the vapor steam blaster that is driven by the HCS from not shown boiler, compressed after, supply in the header box 4 of entrance side.Other structure is identical with above-mentioned embodiment.In addition, can also directly use and substitute heat pump or vapor steam blaster, in the case, can also use bled steam as heating steam from the external heated steam.
Embodiment 2
Fig. 7 is for the schematic diagram of the structure of the evaporation concentration device 1a of expression other embodiment of the present invention, for attached with identical Reference numeral corresponding to the part of above-mentioned Fig. 1.In this Fig. 7, with Fig. 1 differently, represent the header box 4 of entrance side in the left side, express the header box 5 of oral-lateral on the right side.
The steam that the evaporation concentration device 1a of present embodiment possesses coming flash tank 2 carries out condenser condensing 22.
This tank body 25 is connected by the chamber 5a that turns back of pipeline 29 with the header box 5 of the outlet side of evaporator 2, and the 5b of downstream chamber of the header box 5 of top by pipeline 30 and evaporator 2 and outlet side is connected on the other hand.
Further, tank body 25 is connected with the vavuum pump 14 that is used for remaining on the decompression state below the atmospheric pressure in this tank body 25 and the evaporator 2, and is connected with the condensate pump 23 that is used to discharge the condensate liquid in this tank body 25.
In addition, the vapor steam blaster 24 that the HCS that the steam utilization of flash tank 2 is in the future supplied with by illustrated boiler never etc. drives attracts, compression, this steam is supplied in the header box 4 of entrance side afterwards.Other structure is identical with above-mentioned embodiment.
In the evaporation concentration device 1a of present embodiment, with above-mentioned embodiment similarly, from the heating steam of evaporation ejector 24 first of three baffling structures～the 3rd heat transfer tube group 6a～6c that flows through, thereby therefore can in whole heat transfer tube group 6a～6c, keep high flow rate to realize roughly uniform thin film evaporation.
In addition, the condensate liquid of the heat-transfer pipe outlet of the first heat transfer tube group 6a, the second heat transfer tube group 6b can not enter into the heat-transfer pipe 6 of the ensuing second heat transfer tube group 6b, the 3rd heat transfer tube group 6c, can reduce the influence that condensate liquid causes thus, so heat transfer property improves.
Further, making the external diameter of heat-transfer pipe 6 is 15mm～26mm, and to make the supply dispersion volume of the solution that scatters from dispenser 11 be every horizontal projected area 10m of heat transfer tube group 6a～6c
3/ h/m
2～60m
3/ h/m
2Therefore, that utilizes the liquid that flows down mobilely stirs evaporation uniformly, utilizes adhering to of self-cleaning effect incrustation scale, dirt less thus.
Other embodiment
Though in the respective embodiments described above, a plurality of heat-transfer pipes are divided into a plurality of heat transfer tube group, on above-below direction, the mode that reduces successively with the heat transfer tube group pipe number of past more top disposes, supply with heating steam from the heat transfer tube group that the heat-transfer pipe number of below is maximum, yet, in contrast, in other embodiment of the present invention, also a plurality of heat-transfer pipes can be divided into a plurality of heat transfer tube group, on above-below direction, the mode that increases successively with the heat transfer tube group pipe number of past more top disposes, and supplies with heating steam from the maximum heat transfer tube group of the pipe number of top.
The arrangement of heat-transfer pipe 6 for example, as shown in Figure 8, can also be arranged for three angular separation on the summit that is centered close to imaginary equilateral triangle of the heat-transfer pipe 6 of circle except above-mentioned four angular separation are arranged.
In the case, the interval D 1 between the heat-transfer pipe 6 of adjacency is identical with above-mentioned embodiment, more than 5mm.
In addition, be not limited to three angular separation and arrange, can also be for the arrangement of rhombus spacing etc.
Many heat-transfer pipes 6 become three bafflings except being divided into three pipe group 6a～6c as mentioned above, can also be two bafflings or the above many bafflings of four foldings.
In addition, the header box 5 condensate liquid that takes out and the stoste that supplies to evaporator 2 that make from outlet side can also be set and carry out heat exchange stoste is carried out the preheater of preheating.
Claims (7)
1. evaporation concentration device, heated solution makes this solution evaporation to concentrate under decompression state, in this evaporation concentration device, possesses:
Horizontal arrangement has the evaporator of the closed of a plurality of heat-transfer pipes; With
Supply with the outer surface that spreads to described heat-transfer pipe from the top of this evaporator so that the recycle unit of described solution circulation with storing at the described solution of described evaporator bottom,
Heating steam is fed in the described heat-transfer pipe,
The external diameter of described heat-transfer pipe is 15mm～26mm,
Described a plurality of heat-transfer pipe is divided into a plurality of heat transfer tube group, and on above-below direction, the mode that reduces successively or increase successively with the heat transfer tube group pipe number of past more top disposes, and the described heating steam that supplies in the described heat-transfer pipe is constituted as from the maximum heat transfer tube group of pipe number mobile to the few heat transfer tube group of pipe number successively
Is every horizontal projected area 10m of heat transfer tube group by described recycle unit for the supply dispersion volume of the described solution of described heat transfer tube group
3/ h/m
2～60m
3/ h/m
2
2. evaporation concentration device according to claim 1 possesses heating steam is sent into firing equipment in the described heat-transfer pipe.
3. evaporation concentration device according to claim 1 and 2 possesses first header box and second header box that are connected with the two ends of described a plurality of described heat-transfer pipes respectively,
Described header box have the dividing plate that the space that will be connected with the heat-transfer pipe of the heat transfer tube group of top and the space that is connected with the heat-transfer pipe of the heat transfer tube group of below separate and the condensate liquid that makes the heat transfer in-tube condensation of the heat transfer tube group above described run down into by described dividing plate separate below the space in the sealed tube of bending.
4. evaporation concentration device according to claim 3, described a plurality of heat-transfer pipes be arranged as that four angular separation are arranged or three angular separation are arranged being spaced apart more than the 5mm between the heat-transfer pipe of adjacency.
5. evaporation concentration device according to claim 3, described a plurality of heat-transfer pipes are in 4/1000 in the gradient of length direction with respect to the horizontal plane.
6. evaporation concentration device according to claim 2, described firing equipment is for the steam compressed intensification that will produce in described evaporator and send into heat pump or vapor steam blaster in the described heat-transfer pipe.
7. evaporation concentration device according to claim 1, described heating steam supplies in the described heat-transfer pipe from the outside of this evaporation concentration device.
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| CN2010101690133A CN102233193A (en) | 2010-04-28 | 2010-04-28 | Evaporation concentration device |
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|---|---|---|---|
| CN2010101690133A CN102233193A (en) | 2010-04-28 | 2010-04-28 | Evaporation concentration device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178566A (en) * | 2016-08-31 | 2016-12-07 | 浙江中机环保科技股份有限公司 | A kind of two effect formula horizontal tube falling film vapor recompression vaporizers |
| CN106730954A (en) * | 2016-12-06 | 2017-05-31 | 甘肃蓝科石化高新装备股份有限公司 | Antiscaling type Falling Film Evaporator of Horizontal Tube |
| CN107694133A (en) * | 2017-11-06 | 2018-02-16 | 李少艳 | One Plant Extracts medicinal extract is concentrated in vacuo drying process |
| CN108392845A (en) * | 2017-02-07 | 2018-08-14 | 笹仓机械工程有限公司 | Evaporation concentration device |
| CN108697941A (en) * | 2016-01-27 | 2018-10-23 | T.S.D.淡化有限公司 | Free-standing humidification-dehumidifying method for purifying water and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4141410A (en) * | 1976-04-20 | 1979-02-27 | Sasakura Engineering Company, Limited | Evaporator |
| CN87203446U (en) * | 1987-07-10 | 1988-04-13 | 东北制药总厂 | Rotary array-pipe concentrator |
| JPH01139101A (en) * | 1987-11-26 | 1989-05-31 | Sasakura Eng Co Ltd | Crystallizer |
| JP2007098320A (en) * | 2005-10-06 | 2007-04-19 | Sasakura Engineering Co Ltd | Enrichment apparatus and neutralizing method |
| JP2007136374A (en) * | 2005-11-21 | 2007-06-07 | Sasakura Engineering Co Ltd | Evaporating/concentrating device |
| CN101683569A (en) * | 2008-09-25 | 2010-03-31 | 笹仓机械工程有限公司 | Evaporation-concentration apparatus and evaporation-concentration method for aqueous solution |
-
2010
- 2010-04-28 CN CN2010101690133A patent/CN102233193A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4141410A (en) * | 1976-04-20 | 1979-02-27 | Sasakura Engineering Company, Limited | Evaporator |
| CN87203446U (en) * | 1987-07-10 | 1988-04-13 | 东北制药总厂 | Rotary array-pipe concentrator |
| JPH01139101A (en) * | 1987-11-26 | 1989-05-31 | Sasakura Eng Co Ltd | Crystallizer |
| JP2007098320A (en) * | 2005-10-06 | 2007-04-19 | Sasakura Engineering Co Ltd | Enrichment apparatus and neutralizing method |
| JP2007136374A (en) * | 2005-11-21 | 2007-06-07 | Sasakura Engineering Co Ltd | Evaporating/concentrating device |
| CN101683569A (en) * | 2008-09-25 | 2010-03-31 | 笹仓机械工程有限公司 | Evaporation-concentration apparatus and evaporation-concentration method for aqueous solution |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108697941A (en) * | 2016-01-27 | 2018-10-23 | T.S.D.淡化有限公司 | Free-standing humidification-dehumidifying method for purifying water and system |
| CN106178566A (en) * | 2016-08-31 | 2016-12-07 | 浙江中机环保科技股份有限公司 | A kind of two effect formula horizontal tube falling film vapor recompression vaporizers |
| CN106730954A (en) * | 2016-12-06 | 2017-05-31 | 甘肃蓝科石化高新装备股份有限公司 | Antiscaling type Falling Film Evaporator of Horizontal Tube |
| CN108392845A (en) * | 2017-02-07 | 2018-08-14 | 笹仓机械工程有限公司 | Evaporation concentration device |
| CN108392845B (en) * | 2017-02-07 | 2021-08-31 | 笹仓机械工程有限公司 | Evaporation concentration device |
| CN107694133A (en) * | 2017-11-06 | 2018-02-16 | 李少艳 | One Plant Extracts medicinal extract is concentrated in vacuo drying process |
| CN107694133B (en) * | 2017-11-06 | 2021-06-08 | 李少艳 | Vacuum concentration drying process for plant extract |
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Application publication date: 20111109 |